I dont understand,,, plz help me..
-4/7 + (-3/4)= I was absent when class learned this, now i am really behind and close to getting an F! Please help me

Respuesta :

negative is like go left on the number line
adding a negative means keep going left
so
-4/7+(-3/4)
we have to make bottoms same
-4/7 times 4/4=-16/28
-3/4 times 7/7=-21/28

we have
-16/28-21/28=(-16-21)/28=-37/28=-1 and 9/28
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